If, theoretically speaking, you had a box with nothing but reflective surfaces on the inside, and put a light source of some sort on the inside, what would happen to the light when you turned off the light source? Would the light that was given off by the the lightbulb continuously bounce off the sides and you would have contained light in a box (I suppose you couldn't open it, since that would let light escape), or, would it be like other waves and transmit partially through the material that the box is made of (In that case, is there a material that could contain light)?
Grease fires on your stove. use baking soda.
On oil-started fires you shouldn't use water. Oil will float on top of water and keep burning. It will spread the fire wherever the water goes.
Certain rights declare that you need a search warrants to go into the house you should ask them if they have one but if they think that a fugitive is in there such as a criminal they may come in with force or not you can complain to the police department if not then try reporting to the local news maybe they will help stop the entering without the warrant you might be able to ask them to live or ask the reason of entering.
Water should not be used in electrical or ANY chemical fires. Reasoning? By putting water on an electrical fire, you'll simply spread the fire. (The water acts as a conductor.) That's obviously not going to put the fire out, is it? By putting water on a chemical fire, you're putting yourself even more at risk. If you don't know what that chemical is, you obviously don't know how it reacts with water. It could be a sodium fire, for all you know. Water and sodium react explosively, and that definitely wouldn't help putting the fire out. The best choice in these situations is to simply smother the fire, with a fire blanket. Fires can't occur without oxygen in any situation. I'd also note that it's a bad idea to use fire extinguishers in chemical fires. If you don't know what the chemical is, you also don't know how it reacts with carbon dioxide (or whatever chemical your fire extinguisher may use).
